Details for this vulnerability have not been published by NIST at this point. Descriptions from software vendor advisories for this issue are provided below.
From ELSA-2022-0538:
[91.6.0-1.0.1] - Replaced thunderbird-redhat-default-prefs.js with thunderbird-oracle-default-prefs.js - Enabled aarch64 build [91.6.0-1] - Update to 91.6.0 build1
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